As deep a hole as the last-place Nets are in — having traded away to the Celtics what ended up being the top pick in the June 22 NBA draft — they can’t afford any mistakes. They have worked out a host of prospects and are bringing in more, including high-profile guards Jawun Evans and Terrance Ferguson.

The Nets are projected to take Oklahoma State’s Evans, either with the No. 22 or No. 27 pick, according to Sports Illustrated, Basketball Insider and Bleacher Report.

The 6-footer doesn’t fit the mold of the big point guards the Nets prefer (remember, they kept Spencer Dinwiddie over Yogi Ferrell), but the success of small guards such as Chris Paul and Isaiah Thomas has buoyed Evans’ confidence he can follow in their footsteps.

“It just means great things to me, how great those guys [are]: Chris Paul, Isaiah Thomas, just seeing the big roles they play for their teams,” Evans said at the ASM Sports Pro Day in Las Vegas. “So I feel like I can come in, develop that and hopefully one day I’ll be as good as them.”

Evans averaged 19.2 points, 6.4 assists and 1.8 steals as a sophomore. He excels in the pick-and-roll, gets in the lane at will and hit 37.9 percent from deep — a number he thinks can improve upon.

“I feel like I’m developing well as a shooter. I’ve been in here working on my shot, finding little things just to make my shot better, just help me tremendously,’’ Evans said. “Extending my range out has helped me a lot with the spacing, too. So I just feel like it’s helped me a lot.”

Ferguson’s workout, reported by Basketball Insiders, is slated for Sunday as part of a group. One of the more physically gifted players in the bottom half of the draft, the 19-year-old off-guard is all over the board in most mock drafts.

The 6-foot-7 Ferguson had been the MVP of the McDonald’s All-America game, committing to Alabama and then Arizona before eligibility issues led him overseas with the Adelaide 36ers in Australia. He didn’t have great numbers (4.6 ppg), but at just 19 he’s regarded as an elite athlete, solid defender and streaky shooter who eventually could fit the 3-and-D mold so coveted in the modern NBA.

Nets target Milos Teodosic’s Russian league season came to an end Tuesday, and CSKA quickly offered the point guard a contract extension. That isn’t expected to matter, though, with the Russian team unable to match any offer from an NBA club. Denver and Miami reportedly also are interested in the 30-year-old Serbian.